Three-Row Roller Slewing Bearings

Three-Row Roller Slewing Bearings are the highest capacity slewing bearing type, featuring three independent rows of cylindrical rollers. One row handles axial loads (upward), one row handles reverse axial loads (downward), and one row handles radial loads. This design provides maximum load capacity and rigidity for extreme heavy-duty applications where other bearing types are insufficient.

Structural Features

Three-row roller slewing bearings feature three independent raceways – two for axial loads (upward and downward) and one for radial loads. Each raceway is optimized for its specific load direction, providing the highest load capacity and rigidity among all slewing bearing types.

Key structural features:

Three independent raceways – Separate raceways for upward axial, downward axial, and radial loads
Maximum load capacity – Highest capacity among all slewing bearing types
Extreme rigidity – Minimal deflection under heavy moment loads
Cylindrical rollers – Line contact for maximum load distribution
Forged steel rings – 50Mn integral forging for superior strength
Hardened raceways – Induction hardened to HRC58-62
Segmented cages – Brass or steel cages for roller separation
Gear options – External (132/133), internal (134), or gearless (130/131)

Series code reference:

130/131 series – Gearless design for external drive
132/133 series – External gear for pinion drive
134 series – Internal gear for compact drive

Applications

Three-row roller slewing bearings are designed for extreme heavy-duty applications demanding maximum load capacity:

Construction machinery – Large cranes, tower cranes, crawler cranes, heavy excavators
Port machinery – Ship unloaders, container cranes, stacker reclaimers, gantry cranes
Offshore & marine – Offshore platform cranes, ship cranes, deck equipment
Tunneling & mining – Tunnel boring machines (TBM), bucket wheel excavators, dredgers
Heavy industrial – Large rotary tables, ladle turrets, heavy-duty positioners

Popular Models

Product Specifications

Bearing No.	ID	OD	H	Cr	Cor	Mass
132.28.800	636	964	182	5490	712	500
133.28.800	636	964	182	5490	712	500
131.28.800	636	964	182	5490	712	500
134.28.800	636	964	182	5490	712	500
130.28.800	636	964	182	5490	712	500
134.28.900	736	1064	182	6190	808	600
132.28.900	736	1064	182	6190	808	600
131.28.900	736	1064	182	6190	808	600
130.28.900	736	1064	182	6190	808	600
133.28.900	736	1064	182	6190	808	600
133.28.1000	836	1164	182	6890	903	680
134.28.1000	836	1164	182	6890	903	680
132.28.1000	836	1164	182	6890	903	680
131.28.1000	836	1164	182	6890	903	680
130.28.1000	836	1164	182	6890	903	680
132.28.1120	956	1284	182	7680	1020	820
131.28.1120	956	1284	182	7680	1020	820
133.28.1120	956	1284	182	7680	1020	820
134.28.1120	956	1284	182	7680	1020	820
130.28.1120	956	1284	182	7680	1020	820

FAQ

What makes three-row roller bearings stronger than other types?

Three-row roller bearings have three independent raceways – two for axial loads (upward and downward) and one for radial loads. Each raceway is optimized for its specific load direction, unlike single-row designs that combine all loads in one raceway. This provides the highest load capacity and rigidity among all slewing bearing types.

What do the series numbers 130, 131, 132, 133, 134 mean?

130/131 = gearless, 132/133 = external gear, 134 = internal gear. The number after series (e.g., 32 in 133.32.1400) indicates roller diameter in mm. The last number is the raceway center circle diameter (PCD) in mm.

Can your three-row bearings replace Rothe Erde or IMO?

Yes. We manufacture three-row roller slewing bearings to standard dimensions interchangeable with Rothe Erde, IMO, SKF, Rollix, and other major brands. Please provide original part number or drawing for cross-reference.